The historical house of Moshir al molk Ansari, the competent Qajar minister, is one of the valuable architectural masterpieces in Iran. This mansion excels its Qajar counterparts in terms of unique and royal architectural designs. The jewels of the house are the spring room and the alcove in which the Iran's largest sash window was built inside. This historical house has been listed in the National Register of Historic Places in 2010.